deep

of an obscure nature

“a deep dark secret”

extending relatively far inward

“a deep border”

having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination

“a deep well”

intense or extreme

“in deep trouble”

large in quantity or size

“deep cuts in the budget”

literary term for an ocean

“denizens of the deep”

marked by depth of thinking

“deep thoughts”

relatively deep or strong; affecting one deeply

“a deep breath”

relatively thick from top to bottom

“deep carpets”

the central and most intense or profound part

“in the deep of night”

very distant in time or space

“deep in the past”

densely dark

“a face in deep shadow”